Date:         20 Jan 98 01:29:46 
From:         Ken S <>
Organization: University of Illinois at Urbana-Champaign
Followups:    1 2 3 4
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I was wondering if any one can help explain the FAA rational for deicing
aircraft. I have seen aircraft deiced when the outside air temp was -10c
and very light snow falling. Now I understand the Clean aircraft concept
yet it seems to me that this snow (maybe enough to leave a trace after
several hours) poses no threat to the aircraft. Yet because our ops
specs call for a "clean airplane" we must de-ice.

Any thoughts?